CN212715543U

CN212715543U - Edge folding structure of metal curtain wall plate

Info

Publication number: CN212715543U
Application number: CN202021109826.9U
Authority: CN
Inventors: 蒋学文; 丁旭东; 刘耀晓; 王家辉
Original assignee: Wonderful Wall New Materials Corp ltd
Current assignee: Zhejiang Qianghuang New Materials Co.,Ltd.
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-16
Anticipated expiration: 2030-06-16

Abstract

The utility model provides a hem structure of a metal curtain wall plate, which relates to the technical field of curtain wall decoration material processing, and comprises a rectangular notch with a rectangular angle cut off before the hem of the metal curtain wall plate is bent, a formed reserved hem I and a reserved hem II; the length of the rectangular notch is the height of a reserved folded edge I, and the width of the rectangular notch is the height of the folded edge I minus the thickness of a plate to be folded; the second folded edge covers the end of the first folded edge after the metal curtain wall plate is folded. The utility model discloses the hem structure has improved the traditional hem structure that traditional hem piece angle technology formed, according to the panel thickness of difference, changes into from the plate type design and sets out, improves original uniform width hem to unequal width hem, through longer broadside gland on shorter broadside, makes the sharp more of edges and corners in bight, and the gap diminishes, and the area of polishing reduces, reduces to polish and electric welding volume, reduces the cost of labor.

Description

Edge folding structure of metal curtain wall plate

Technical Field

The utility model relates to a hem structure of metal curtain board belongs to curtain ornamental material processing technology field.

Background

With the development of the economic and architectural decoration industry and the improvement of the aesthetic appearance of people, the aluminum veneer with high corrosion resistance, light specific gravity, no light pollution and various shapes becomes one of three decorative materials after stone and glass are hung, and the application range and the using amount are increased year by year. The production process of the aluminum veneer mainly comprises the working procedures of drawing deepening, numerical control lofting, bending forming, argon arc welding, reinforcing rib assembling, polishing, corner fitting, pretreatment, coating spraying and the like. The bending forming is an important process, and the processing technology and the quality directly influence the appearance, the waterproof performance, the strength and the like of the product.

As shown in fig. 1 and 2, a conventional edge folding process generally cuts a square with a side length equal to the height of the folded edge at a corner, and then folds the two perpendicularly crossing edges to a height. However, because the aluminum single plate of the curtain wall is thick, square column-shaped vacant positions (large gaps) with the thickness as the side length can be formed at the corners after the two sides are folded, and then the aluminum single plate is filled by surfacing welding and then polished into a right angle. Because of build-up welding is polished again earlier, polish the welding block easily not hard up or drop, influence product quality, and every angle all so will polish, and work load is great.

The present application was made based on this.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned defect that exists among the prior art, the utility model provides a hem structure of metal curtain board reduces the gap behind the hem to reduce sanding area and electric welding volume.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a metal curtain wall plate edge folding structure comprises a rectangular notch with a rectangular angle cut off before the metal curtain wall plate edge folding is bent, and a reserved edge I and a reserved edge II which are formed; the length of the rectangular notch is the height of a reserved folded edge I, and the width of the rectangular notch is the height of the folded edge I minus the thickness of a plate to be folded; the second folded edge covers the end of the first folded edge after the metal curtain wall plate is folded.

Furthermore, the length and the width direction of the rectangular notch are selected randomly.

And further, the bending of the reserved flanging I and the reserved flanging II is finished by a vertical numerical control flanging machine or a numerical control turnover flanging machine to form a flanging which is vertical to the original plane plate.

The utility model discloses a principle and beneficial technological effect:

(1) the utility model discloses the hem structure has improved the traditional hem structure that traditional hem piece angle technology formed, according to the panel thickness of difference, changes into from the plate type design and sets out, improves original uniform width hem into unequal width hem, and broadside gland through a little length is on a little broadside, makes the sharp more of edges and corners in bight, and the gap diminishes, and the area of polishing reduces, and greatly reduced polishes and electrically welds the volume, reduces the cost of labor.

(2) The utility model discloses the effect that hem structure presented is that one side tip just seals the tip on one side in addition, and the tip that exposes is neat with the hem edge, and the edges and corners is clear.

(3) The utility model discloses hem structure is because of the gap is less, and the dog-ear is neat, and the area that needs to polish reduces, the work load of the process of polishing that can significantly reduce.

(4) The utility model discloses hem structure provides more pleasing to the eye dog-ear effect, and dog-ear position intensity also further improves.

Drawings

FIG. 1 is a schematic view of a conventional slitting and hemming (in dotted lines);

FIG. 2 is a top view of an effect of a folded corner of a conventional folding process;

FIG. 3 is a schematic diagram of a plate surface of a notch and folded edge (in a dotted line) structure according to the present embodiment;

FIG. 4 is a top view showing the effect of the folded corner of the present embodiment.

Description of the labeling: the metal curtain wall plate comprises a metal curtain wall plate 1, a first original folding edge 21, a second original folding edge 22, a square cut 3, a vacant position (large gap) 4, a first folding edge 51, a second folding edge 52, a rectangular cut 6, a length a, a width b and a plate thickness d.

Detailed Description

In order to make the technical means and the technical effects achieved by the technical means of the present invention clearer and more complete, the following embodiments are provided and are described in detail with reference to the accompanying drawings as follows:

as shown in fig. 3 and 4, the metal curtain wall panel folding edge structure of the present embodiment includes a rectangular notch with a rectangular angle cut off before the metal curtain wall panel folding edge is bent, and a first reserved folding edge and a second reserved folding edge formed; the length of the rectangular notch is the height of the reserved first folded edge, and the width is the height of the first folded edge minus the thickness of the plate to be folded (namely the difference between the length and the width is the thickness of the plate); the second folded edge covers the end of the first folded edge after the metal curtain wall plate is folded.

The edge folding process of the metal curtain wall plate edge folding structure is completed through the following steps:

(1) cutting off one corner of the metal curtain wall plate to be flanged to form a rectangular notch, a reserved flange I and a reserved flange II (two sides crossed at right angles);

(2) the reserved first folding edge and the reserved second folding edge are folded by 90 degrees on the back of the two homodromous plates respectively (namely, two sides of the right-angle cross are folded towards the back direction according to the height requirement of the folding edges and are perpendicular to the plate surface) to form a first folding edge and a second folding edge, the second folding edge covers the end part of the first folding edge, almost no gap exists, and the gap is sealed without butt welding. The bending is finished on a vertical numerical control flanging machine or a numerical control turnover flanging machine to bend the reserved edge to form a flanging vertical to the original plane plate, and the bending efficiency is improved while the bending quality can be ensured by adopting a specific instrument for bending.

(3) Spot welding is carried out on the seam of the first folded edge and the second folded edge;

the length of the rectangular notch is the height of the reserved first folded edge, and the width is the height of the first folded edge minus the thickness of the plate to be folded.

In the embodiment, the length and the width direction of the rectangular notch are selected randomly and are irrelevant to the length and the width direction of the board surface, so that the notch and the board surface direction do not need to be considered when an angle turning board is cut; and only the height of the folded edge needs to be determined during folding, and the size of the cut does not need to be concerned.

The original aluminum single plate is flanged with equal width, so that a gap related to the plate thickness is formed at the corner part of the end part of the flanged edge, the flanged edge needs to be firstly welded to the gap in a bead welding manner, and then a welding block is polished into a right angle. The improved back corner angle of the embodiment is clear, the appearance is attractive, and the electric welding polishing amount is reduced. The edge folding and corner splicing process technology is improved, the original equal-width folded edge is changed into the unequal-width folded edge from the plate type design according to different plate thicknesses, the longer wide edge is pressed on the shorter wide edge, and a large gap caused by the plate thickness in the original process is eliminated, so that only simple spot welding is needed, surfacing welding is not needed, and the resource consumption of welding materials, welding gas, labor, working hours and the like is reduced.

The above is a detailed description of the technical solutions provided in connection with the preferred embodiments of the present invention, and it should not be assumed that the embodiments of the present invention are limited to the above description, and it will be apparent to those skilled in the art that the present invention can be implemented in a variety of ways without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a hem structure of metal curtain board which characterized in that: the method comprises the steps that a rectangular notch with a rectangular angle is cut before the metal curtain wall plate is folded, and a reserved folding edge I and a reserved folding edge II are formed; the length of the rectangular notch is the height of a reserved folded edge I, and the width of the rectangular notch is the height of the folded edge I minus the thickness of a plate to be folded; the second folded edge covers the end of the first folded edge after the metal curtain wall plate is folded.

2. A hem structure for a metal curtain wall panel as claimed in claim 1, wherein: the length and the width direction of the rectangular notch are selected randomly.

3. A hem structure for a metal curtain wall panel as claimed in claim 1, wherein: and the reserved folded edge I and the reserved folded edge II are bent by a vertical numerical control folding machine or a numerical control turnover folding machine to form folded edges perpendicular to the original plane plate.